How to print meta description to posts? [closed]

I want to show my meta description content above posts. But i don’t know what function I need to call.

Resume: i want to put meta description from Yoast Seo above the posts body.

You will want to make use of Yoast SEO’s “WPSEO_Frontend” class. To display the meta description field content, you could do the following:

<?php
   if (class_exists('WPSEO_Frontend'))
   {
       echo WPSEO_Frontend::metadesc(false);
   }
?>